[1]
D. A. A. Makuasa and P. Ningsih, “The Analysis of Total Flavonoid Levels In Young Leaves and Old Soursop Leaves (Annona muricata L.) Using UV-Vis Sepctrofotometry Methods”, J. Appl. Sci. Eng. Technol. Educ., vol. 2, no. 1, pp. 11-17, Jun. 2020.